Home / 122,020.70-168,390.35-70,309.28

Finding the Fourth Proportional to 122,020.70, 168,390.35 and 70,309.28

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Solution

The fourth proportional to 122,020.70, 168,390.35 and 70,309.28 is: 97,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,020.70 : 168,390.35 = 70,309.28 : x
  2. Step 2: Convert to fraction form
    122,020.70/168,390.35 = 70,309.28/x
  3. Step 3: Cross multiply
    122,020.70x = 168,390.35 × 70,309.28
  4. Step 4: Simplify right side
    122,020.70x = 11,839,404,600.54
  5. Step 5: Solve for x
    x = 11,839,404,600.54/122,020.70
  6. Step 6: Final answer
    x = 97,027.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.